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 Table 2.—Mineral production ' in the United States 
 1964 
Mineral ———————— Quantity
Value (thousands) 
1965 
  
 Quantity Value 
(thousands) 
— Quantity 
 1966 1967 
—— —__—         
 Value Quantity Value 
 (thousands) (thousands) 
Mineral fuels: 
Asphalt and related bitumens (native): 
Bituminous limestone and sandstone and gilsonite 
 short tons.... 1,935,344 $10,038 1,911,664 $9,461 2,041,271 $8,438 1,866,666
$8,136 
 Carbon dioxide, natural (estimate) - thousand cubic feet. 1,232,816 166
1,173,676 152 1,140,907 153 1,142,374 165 
 Coal: 
    Bituminous and lignite 2 thousand short tons.. 486,998 2,165,582 512,088
2,276,022 533,881 2,421,293 552,626 2,555,377 
    Pennsylvania anthracite do...... 17,184 148,648 14,866 122,021 12,941
100,663 12,256 96,160 
 Helium: 
    Crude thousand cubic feet~ 3,197,016 35,322 3,566,734 39,848 3,654,700
41,556 3,697,300 42,800 
    GradeA do...... 830,481 25,923 819,100 28,880 951,400 32,541 1,015,000
29,657 ~ 
 Natural gas million cubic feet.... 15,462,138 2,387,689 16,039,753 2,494,542
' 17,232,134 ' 2,721,875 18,171,325 2,898,741 ~ 
 Natural gas liquids: 
    Natural gasoline and cycle products 
  thousand gallons~ 7,000,181 463,600 7,288,070 494,354 *7,591,658 *524,167
p7,919,831 3549,429 ~ 
    LPgases do...... 10,743,591 362,792 11,257,267 417,249 12,134,294 527,223
13,717,861 632,994 ~ 
 Peat short tons.... 639,690 6,198 603,746 6,080 605,858 6,5Q1 619,687 6,768
~ 
 Petroleum (crude)         thousand 42-gallon barrels.... 2,786,822 8,017,078
r 2,848,514 r    8,158,299 ' 3,028,084 a 8,727,387 ' 3,216,715 1 9,377,516
~4 
 Total mineral fuels XX 13,623,000 XX 14,047,000 XX ' 15,112,000 XX 16,198,000
~ 
 
Nonmetals (except fuels): 
 Abrasivestones4 shorttors.... 3,186 $292 3,603 $432 3,806 $515 2,701 $574
0 
 Asbestos do~..  101,092  8,143  118,275  10,162  125,928  11,056  123,189
 11 102  ~ 
 Barite thousandshorttons..  830  9,796  852  10,192  947  11,259  962  11,604

 Boron minerals do...... 776 60,871 807 64,180 866 68,209 955 74,130 ~ 
 Bromine thousand pounds~ 283,530 66,064 328,115 77,259 326,498 78,883 349,757
85,391 !~ 
 Calcite (optical grade) .pounds.... 4 2 (5) (5) (5) (5) 
 Calcium-magnesium chloride. short tons  W W W W W W 608,965 11,983 
Cement: 
    Portland thousand 376-pound barrels_ 358,378 1,145,108 366,802 1,154,448
373,091 1,162,984 365 570 1 148 208 
    Masonry thousand 280-pound barrels_ 22,397 63,305 23,260 65,979 22,367
63 407 21 700 62 ' 168 
    Natural and slag thousand 376-pound barrels..  283 1,057 279 1,027 r
109 r 415 '  94  ' 360 
 Clays thousandshorttons..  52,947  192,631  55,126  204,932  ' 56,713  ' 221,714
 54664  223 987 
 Emery short tons.. 9,214 172 10,720 204 11,102 210 (5) (5) 
 Feldspar long tons.. 587,194 5,389 624,598 6,263 r 655,452 r 7 020 615 397
7 086 
 Fluorspar short tons.. 217,137 9,723 240,932 10,889 253,068 10,841 295 643
 13164 
 Garnet (abrasive) do.~... 16,123 1,622 19,330 1,717 21,952 2,092 20,494
 1,849 
 Gem stones (estimate)  NA 1,474 NA 2,218 NA 2,437 NA 2 430 
 Gypsum thousand short tons~ 10,684 38,874 10,033 37,375 9,647 35,681 9 393
34 383 
 Lime do..~ 16,089 223,149 16,794 232,939 18,057 239,588 17 974 241 137 
 Magnesium compounds from sea water and brine (except 
  for metals) short tons, MgO equivalent             599,698            
42,177             637,857             47,197             r 651,187     
       r 46,690             544,428              41,414 
 Mica: 
    Scrap short tons.. 114,729 3,353 120,255 3,468 113,133 3,733 118 503
2 876 
    Sheet pounds~ 242,662 58 716,086 185 4,500 1 20,500 (5)' 

					
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